Hi I have a nonlinear expression I would like to estimate the three parameters of, however I require a computer to do it. I would like a least squares optimization method or some form that required as little as possible from the user as the partial derivatives are quite nasty. I have considered the levenberg marquardt method however documentation on using it is quite slim.(adsbygoogle = window.adsbygoogle || []).push({});

I wondered whether anyone could suggest another method (with better documentation) and possibly know of existing computer example of using it. I understand matlab and C. However I really require to be able to use the algorithm in C.

Thanks

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# Non linear parameter estimation

Can you offer guidance or do you also need help?

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